[arm-allstar] Darth Vader

[Doug Crompton]

Here is some more information on the remote command which had been a huge
security hole and was part of Allstar from the beginning until we plugged
it several years ago. By default it is turned OFF on all Hamvoip systems.
This command in each node stanza turns if off but if omitted it is off by
default.

remote_dtmf_allowed = 0

It is recommended that it be turned on only under controlled conditions and
with the users knowledge that they are opening their node to remote control
by anyone in a connected state to that node. This would generally be used
in closed private or limited public connections where you knew and trusted
all connected users.

This does not however limit the remote command from trying. It will just
fail unless the destination end allows remote DTMF. So if a user types in
the client:

rpt fun 59000 *459001*81

Your system will attempt to send a *81 command from node 59000 to node
59001.  You will hear the "By Your Command" message and you will get a
second beep after your courtesy tone. This indicates that all subsequent
commands will go to node 59001. To leave command mode you need to send a
single #. In this case:

rpt fun 59000 #

You also could have ended the command in the original line by adding a # to
the end:

rpt fun 59000 *459001*81#

Again this is for reference only and to tell you that this command can
always be initiated but never performed on a Hamvoip system unless the user
allows it which is generally NOT recommended.


*73 Doug*

*WA3DSP*

*http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*




On Sun, Feb 23, 2020 at 4:37 PM "David McGough via ARM-allstar" <
arm-allstar at hamvoip.org> wrote:

>
> Dean,
>
> When/if you hear the video clip saying: "By your command" in a "Cylon"
> voice (See this video: https://www.youtube.com/watch?v=0ccKPSVQcFk ),
> that
> means the node has been placed in remote-control mode.
>
> To exit remote control mode, use the DTMF '#' symbol (hash/pound sign).
>
> You can also disable remote-control mode entirely using this rpt.conf node
> stanza command:
>
> remote_dtmf_allowed = 0
>
>
> 73, David KB4FXC
>
>
> On Sun, 23 Feb 2020, "Dean Martinson via ARM-allstar" wrote:
>
> > Morning everyone,
> > Had this happen 1 time before several months ago. I was doing a  DTMF
> > command into my repeater and it came back with a Darth Vader voice and
> then
> > locked the PTT until it timed out. I had to log in via the internet and
> do
> > an asterisk restart and it went back to normal.
> >  I am running a Pi 3 with the latest hamvoip image and latest updates.
> The
> > Pi is the controller  for my repeater.
> >
> > Thanks
> > Dean
> > K9QB
> > _______________________________________________
> >
> > ARM-allstar mailing list
> > ARM-allstar at hamvoip.org
> > http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
> >
> > Visit the BBB and RPi2/3/4 web page - http://hamvoip.org
> >
>
> _______________________________________________
>
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>
> Visit the BBB and RPi2/3/4 web page - http://hamvoip.org
>